I use WP for almost all. Wish i HAD used it for all. I use a couple of WYSIWYG site builders like "Coffee Cup" as well. Wish I hadn't bothered.
Learning the best install for WP (i.e what theme and plugins to use and how to config them) was one of the best uses of my time ever.
WP just seems to outrank anythig else I try.
Even designed loads of different template styles with artisteer, so I can have squeeze pages long form sales pages, video review pages or whatever.
Stick to WP, just use an external editor (Windows live writer is better these days - and free of you are a Windows user) 'cause the built in editor for WP is still the worst part of the whole shebang.
Scritty